Graham Field Grafco Dejerine Percussion Hammer 8" with Built in Needle Color_Red Reliable High Performance: This overhead stirrer Dimensions:12"L x 32"W Reliable High Performance: This overhead stirrer offers high reliability and outstanding performance High Grip Surface: Equipped with a non slip rubber mat to ensure secure footing in both dry and damp clinical conditions this 8 inch hammer provides the necessary weight and balance required for eliciting myotatic and cutaneous responses with consistent accuracy Clinical Durability: Chrome plated construction provides long term resistance to corrosion and wear in high volume medical settings